5. Now change the beam bridge into a suspension bridge. Tie the center of a 100-cm (about 4 ft.) cable around the middle of a new straw. Place the straw between the towers. Pass each end of the ...

two beams with an “imaginary” hinge; improper constraints; complex structures; example; a famous three-hinged structure. 6) Arches and suspension bridges. Indirect load. Three hinged arch; arch with ...